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| author | Yangtao Li <frank.li@vivo.com> | 2023-02-13 22:18:24 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2023-02-14 10:07:45 -0800 |
| commit | f2e357893cb7d15994e4ec10838ebb4dccf7eb6e (patch) | |
| tree | 49afd058cd83a4b624d9db8449c2ba2637f13ec4 /fs/f2fs | |
| parent | 273a51e5521213a13e5852e762cc9c03c66b9baa (diff) | |
| download | linux-f2e357893cb7d15994e4ec10838ebb4dccf7eb6e.tar.gz linux-f2e357893cb7d15994e4ec10838ebb4dccf7eb6e.tar.bz2 linux-f2e357893cb7d15994e4ec10838ebb4dccf7eb6e.zip | |
f2fs: export ipu policy in debugfs
Export ipu_policy as a string in debugfs for better readability and
it can help us better understand some strategies of the file system.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
| -rw-r--r-- | fs/f2fs/debug.c | 24 | ||||
| -rw-r--r-- | fs/f2fs/segment.h | 1 |
2 files changed, 25 insertions, 0 deletions
diff --git a/fs/f2fs/debug.c b/fs/f2fs/debug.c index 32af4f0c5735..ff5995cb9560 100644 --- a/fs/f2fs/debug.c +++ b/fs/f2fs/debug.c @@ -354,6 +354,17 @@ static char *s_flag[] = { [SBI_IS_FREEZING] = " freezefs", }; +static const char *ipu_mode_names[F2FS_IPU_MAX] = { + [F2FS_IPU_FORCE] = "FORCE", + [F2FS_IPU_SSR] = "SSR", + [F2FS_IPU_UTIL] = "UTIL", + [F2FS_IPU_SSR_UTIL] = "SSR_UTIL", + [F2FS_IPU_FSYNC] = "FSYNC", + [F2FS_IPU_ASYNC] = "ASYNC", + [F2FS_IPU_NOCACHE] = "NOCACHE", + [F2FS_IPU_HONOR_OPU_WRITE] = "HONOR_OPU_WRITE", +}; + static int stat_show(struct seq_file *s, void *v) { struct f2fs_stat_info *si; @@ -384,6 +395,19 @@ static int stat_show(struct seq_file *s, void *v) seq_printf(s, "Current Time Sec: %llu / Mounted Time Sec: %llu\n\n", ktime_get_boottime_seconds(), SIT_I(si->sbi)->mounted_time); + + seq_puts(s, "Policy:\n"); + seq_puts(s, " - IPU: ["); + if (IS_F2FS_IPU_DISABLE(si->sbi)) { + seq_puts(s, " DISABLE"); + } else { + unsigned long policy = SM_I(si->sbi)->ipu_policy; + + for_each_set_bit(j, &policy, F2FS_IPU_MAX) + seq_printf(s, " %s", ipu_mode_names[j]); + } + seq_puts(s, " ]\n\n"); + if (test_opt(si->sbi, DISCARD)) seq_printf(s, "Utilization: %u%% (%u valid blocks, %u discard blocks)\n", si->utilization, si->valid_count, si->discard_blks); diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h index 8ee5e5db9287..92c8be00d396 100644 --- a/fs/f2fs/segment.h +++ b/fs/f2fs/segment.h @@ -672,6 +672,7 @@ static inline int utilization(struct f2fs_sb_info *sbi) #define F2FS_IPU_DISABLE 0 +/* Modification on enum should be synchronized with ipu_mode_names array */ enum { F2FS_IPU_FORCE, F2FS_IPU_SSR, |